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svetoff [14.1K]
3 years ago
9

List all possible permutations

Mathematics
1 answer:
lesantik [10]3 years ago
6 0

1. 1, 2, 3 has 3! = 6 possible permutations:

1 2 3 // 1 3 2 // 2 1 3 // 2 3 1 // 3 1 2 // 3 2 1

2. T, V, W taken 2 at a time has \dfrac{3!}{(3-2)!}=6 possible permutations:

T V // T W // V T // V W // W T // W V

3. I'll replace these symbols with f, s, h, and t (face, sun, heart, triangle). This sequence has \dfrac{4!}{(4-2)!}=12 possible permutations:

f s // f h // f t // s f // s h // s t // h f // h s // h t // t f // t s // t h

4. This has 4! = 24 possible permutations.

A B C D // A B D C // A C B D // A C D B // A D B C // A D C B //

B A C D // B A D C // B C A D // B C D A // B D A C // B D C A //

C A B D // C A D B // C B A D // C B D A // C D A B // C D B A //

D A B C // D A C B // D B A C // D B C A // D C A B // D C B A

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Answer:

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Step-by-step explanation:

The slope of a line tells us how y responds to a change in x.  If the slope is 2, it means that for every time x increases by 1, will will go up by 2.

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3 years ago
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3 years ago
Simplify 17x - 5 - 4x -7<br>​
AlexFokin [52]

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13x - 12 =

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7 0
3 years ago
blanca buys 2 gallons of green paint. She uses 5 quarts to paint her front and 1/2 quart to paint the front porch swing
sukhopar [10]

Paint unused is 0.625 gallons.

<u>Step-by-step explanation:</u>

Quantity of green paint bought = 2 gallons

Now we have to convert gallons to quarts using the conversion factor

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Usage of paint her front = 5 quarts

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So used paint = 5 + 0.5 = 5.5 quarts

To find the unused paint, we have to subtract the used quantity from already bought.

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3 0
4 years ago
Each week, Rosario drives to an ice skating rink that is 120 miles away. The round-trip takes 2.75 hours. If he averages 55 mile
kari74 [83]
While going to the ice skating rink,
Rosario drives a distance of 55 miles in = 1 hour
Then
While going to the ice skating rink,
Rosario drives a distance of 120 miles in = (1/55) * 120 <span>                                                                                                         = 2.18 hours</span>
The number of miles per hour Rosario averages while coming back home = x Total up and down time taken by Rosario = 2.75 hours
Then time taken by Rosario to come back
home from ice skating rink = (2.75 – 2.18) hours <span>                                                     = 0.57 hours</span>
Then we can write the equation as
 x = 120/0.57 miles/hour <span>  
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<span>So the average speed of Rosario while coming back home from ice skating rink is 210.53 miles per hour.</span>
6 0
3 years ago
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